How did you install F14? What kind of partition setup did you use. Are you...

How did you install F14? What kind of partition setup did you use. Are you sharing /home by any chance? If you give us the output of fdisk -l and the output of (as root) cat /boot/grub/grub.conf we may be able to see what is going on. As far as the mounting problem, gnome and KDE handle it differently, but,adding the mount in fstab will help. If you give us the output of /etc/fstab that would help us give you an answer on that.